Ulalek, Fused Atrocity | Echoes of Eternity | Writhing Chrysalis

Cards

Cast
Writhing Chrysalis by paying ({2} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Ulalek and
Writhing Chrysalis' first ability triggers twice, and
Echoes of Eternity triggers once.
Resolve one of
Writhing Chrysalis' triggers, creating two 0/1 Eldrazi Spawn creature tokens.
Activate both Eldrazi Spawn creature tokens by sacrificing it, adding ({C} magic symbol) ({C} magic symbol) .
Resolve the
Echoes of Eternity trigger, copying the
Writhing Chrysalis spell.
Resolve the copy of the
Writhing Chrysalis spell, creating a token copy of it.
Resolve one of
Ulalek's triggers, causing you to pay ({C} magic symbol) ({C} magic symbol) to copy the
Writhing Chrysalis spell,
Ulalek's trigger and
Writhing Chrysalis' trigger.
Resolve the copy of the
Writhing Chrysalis spell.
Resolve the copy of
Writhing Chrysalis' trigger, creating two 0/1 Eldrazi Spawn creature tokens.
Activate both Eldrazi Spawn creature tokens by sacrificing it, adding ({C} magic symbol) ({C} magic symbol) .
Each
Writhing Chrysalis you control triggers twice, putting two +1/+1 counters on each of them.
Resolve the copy of
Ulalek's trigger from step 7, causing you to pay ({C} magic symbol) ({C} magic symbol) to copy the
Writhing Chrysalis spell,
Ulalek's trigger and
Writhing Chrysalis' trigger.
Repeat from step 8.